Simonyi, now 58, will set off for the International Space Station on 9 March 2007 aboard a Russian-built Soyuz TMA-10 spacecraft.
According to Space.com, the upcoming flight is the culmination of a lifelong interest for Simonyi who was selected as Junior Astronaut in his native Hungary when aged just 13.
Simonyi is also reported to have racked up more than 2,000 hours piloting jets and helicopters.
He will dedicate the mission towards the advancement of civilian spaceflight while serving as a test subject for biomedical experiments.
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